Knurler unit for cigar machines



Patented Mar. 28, 1939 UNITED STATES PATENT OFFICE KNURLER UNIT FOR CIGAR MACHINES Application September 19, 1936, Serial No. 101,563

1 Claim.

This invention relates to knurlers for cigar machines, such as are used for hand-knurling the finished cigars before tying them up in bundles, or otherwise stacking them for boxing or packag- 5 ing. Its main object is to provide a completely housed oil-tight unit without any exposed oilthrowing parts, which can be adjusted to any convenient angular position. A further object is to adjustably mount on the knurler unit the 10 bundle tray for stacking the finished cigars, so that the tray will remain in the same adjusted position relative to the cigar rest of the knurler at all positions of the latter. With these and other objects not specifically mentioned in View, the

15 invention consists in certain constructions and combinations hereinafter fully described and claimed.

In the accompanying drawing which forms a part of this specification and in which like char- 20 acters of reference indicate the same or like parts:

Fig. 1 is a plan view of an adjustable hand knurler embodying the invention; and

Fig. 2 is a sectional side elevation of the same.

Referring to the drawing, a horizontal shaft 3 25 supported by a bushing 4 held in a bracket 5 at.-

tached to the frame 3 of the cigar machine, is driven through bevel gears I from a shaft 8 carrying a pulley 9 mounted thereon, to which motion is imparted from the cigar machine drive.

30 The boss I of bracket has formed thereon a cylindrical flange I I in which is pivotally mounted the arcuate head I2 of a tubular holder I3. The flange H is open at the end towards holder I3 and closed at the bottom, and the head I2 is 5 open adjacent the hub of the bracket 5 and has a wall I 4 at its top. The wall I4 of cylinder I2 is provided with concentric slots I 5 for the passage of bolts I6 which hold the cover II of housing I I in place, thereby making the housing oil-tight.

40 Upon loosening these bolts, the holder I3 may be turned to either side within the limits of the slots I5 and of the end opening of housing I I.

In bushings I8 and I9 the holder I3 supports a spindle 23 which is provided with a socket at its outer end into whichis fitted the shank of the knurler head 2I, and its other end may be connected to shaft 3 by a universal joint of conventional construction consisting of yokes 22 and 23 provided with sockets in which the shaft 3 and spindle 20 are fixed and a block 24 provided with pins 25 and 26 intersecting at right angles and pivoted in the tines of the yokes 22 and 23 respectively. The pin 25 is disposed vertically and the slots I5 are concentric therewith. Axial movement of spindle 20 is prevented by a collar 21 fastened on the spindle in abutting relation with the bushing I8 of holder I3 and serving to hold the yoke 23 against a collar 28 bearing on an 5 internal shoulder of shaft 3. The bushing I8 protrudes beyond the end of holder I 3 and carries a rest piece 29 for guiding the cigar C being knurled, the said rest piece being clamped to bushing I8 by means of a bolt 30. The space within the knuckle-joint formed by the articulated connection of the flange I I and head I 2 may be packed with grease to lubricate the universal joint, and sealed by tightening up the bolts IE on the cap I1.

On holder I3 is mounted a bracket 3| carrying the bundle tray 32 in which the finished cigars are stacked. The bracket 3| is provided with a longitudinal slot through which passes a thumbscrew 3| threaded into the holder I3 so that it can be adjusted to the most convenient position to suit the operator. The tray 32 then retains its relative position to the cigar C in the knurler for any angular adjustment of the holder I3.

What is claimed is:

A knurler mechanism of the class described comprising a support enclosing a driving shaft member, and a driven shaft member articulated therewith and enclosed by a holder joined to said support by a lubricant-tight casing; said casing being constituted by a fixed part mounted on said support and a movable part adjustable exclusively in a horizontal plane around a vertical axis coinciding with the mean vertical axis of articulation of the driving and driven members of the shaft, 35 a knurler device carried by and actuated by the free end of said driven shaft member, said casing parts being fabricated with interfitting webs provided with several orifices, the inner Web having arcuate slots concentric with said vertical axis of articulation and displaced radially therefrom, said arcuate slots being covered generally by a web or an exterior part, the latter having bolt holes disposed in vertical alignment, and bolts tapped into said holes and each extending through 4 one of said inner web slots and having a head protruding beyond the other Web hole, whereby an adjustable lubricant-tight bolt fastening means is provided in non-interfering relation with the articulation structure of the casing, and that within the casing.

SIGURD CLAUSEN. 

